Guide
What is a Foreign Military Sales Order I case?
The investment half of a Supply Support Arrangement: the purchaser's stake in U.S. stocks. No materiel is transferred under it.
What is a Foreign Military Sales Order I case?
The I (or stock-level case) initiates the arrangement by establishing the country’s investment for augmenting DoW stock.
No materiel is transferred to the international partner as a direct result of the I. The I case remains in existence for the duration of the . It will be renegotiated or adjusted as necessary whenever a change is required in the investment level necessary to support the country’s actual withdrawal or usage rate.
The I case is subdivided into two parts: Part A, an on-hand portion representing the value of materiel that must be in U.S. stock to fill requisitions; and Part B, which represents a of the on-order portion. The I case provides obligation authority to increase stocks to meet the anticipated demands from the country.
References
SAMM
Facts referenced
- FMS Administrative Surcharge rate — Foreign Military Sales Order (FMSO) I cases — 5 percent (as of 11 September 2026) — SAMM C9.T4
Related
Cooperative Logistics
The logistics support provided a foreign government/agency through its participation in a U.S. DoD logistics system, with reimbursement paid to the USG for the support provided.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
FMSO — Foreign Military Sales Order
SAMM Acronyms, as of 12 September 2026
CLSSA — Cooperative Logistics Supply Support Arrangement
SAMM Acronyms, as of 12 September 2026
Glossary entry →Cooperative Logistics Supply Support Arrangements (CLSSA) →
Dependable Undertaking (FMS)
An excepted term and condition within the Foreign Military Sales case (or Letter of Offer and Acceptance). A firm commitment by a foreign government or international organization to pay the full amount of a contract for new production or for the performance of defense services which will assure the U.S. against any loss on such contract and to make funds available in such amounts and at such times as may be required by the contract, or for any damages and costs that may accrue from the cancellation of such a contract, provided that in the judgment of the DoD there is sufficient likelihood that the foreign government or international organization will have the economic resources to fulfill the commitment.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Foreign Military Sales Order (FMSO)
A term used to describe Letters of Offer and Acceptance (LOAs) that implement Cooperative Logistics Supply Support Arrangements. Two LOAs are written: a FMSO I and a FMSO II.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
DoD Components (DSCA)
The Office of the Secretary of Defense, the Military Departments, the Joint Chiefs of Staff, the Combatant Commands, the DoD Office of the Inspector General, the Defense agencies, and DoD field activities.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Foreign Military Sales (FMS)
A process, authorized by the Arms Export Control Act, through which eligible foreign governments and international organizations may purchase defense articles, services, and training from the United States Government.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Foreign Military Sales Order I (FMSO I)
Provides for the pipeline capitalization of a cooperative logistics support arrangement, which consists of stocks on hand and replenishment of stocks on order in which the participating country buys equity in the U.S. supply system for the support of a specific weapons system. Even though stocks are not moved to a foreign country, delivery (equity) does in effect take place when the country pays for the case.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)